Dodecyl polyoxyethylene ether AC-1202 (also known as: Laureth-2, AEO-2, CAS No.: 26635-75-6) is a nonionic surfactant prepared by ethoxylation of primary fatty amine (dodecylamine). Its molecular formula is C16H34O3 and molecular weight is 273. Under normal conditions, the product exhibits nonionic characteristics, while in acidic media it can show cationic properties, possessing dual functions and flexible compatibility.
The HLB value of this product is approximately 6, making it an oil-soluble emulsifier. It is insoluble in water but soluble in various organic solvents. Its cloud point is below 20°C, foam is low, surface tension is about 30 mN/m, and critical micelle concentration (CMC) is 9.8×10-4 mol/L, showing outstanding interfacial activity. The hydroxyl value ranges from 185 to 205 mgKOH/g, active matter content is ≥99%, chemical properties are stable, alkali resistance is high, and iodine value is low (≤1), suitable for various industrial formulation systems.
| Parameter Item | Index Value | Remarks |
|---|---|---|
| Product Name | Dodecyl polyoxyethylene ether AC-1202 | Also known as: Laureth-2 / AEO-2 |
| CAS No. | 26635-75-6 | — |
| Molecular Formula | C16H34O3 | — |
| Molecular Weight | 273 | — |
| Appearance | Colorless to slightly yellow transparent liquid | Good fluidity, low viscosity |
| Ionic Type | Nonionic (cationic under acidic conditions) | Dual functionality |
| HLB Value | 6 | Oil-soluble emulsifier |
| Cloud Point | <20°C | — |
| Active Matter Content | ≥99% | High purity |
| pH (1% aqueous solution) | 6.0~8.0 | — |
| pH (5% aqueous solution) | 6.0~8.0 | — |
| Density (20°C) | 0.92 g/cm³ | — |
| Kinematic Viscosity | 30~50 mm²/s | Low viscosity liquid |
| Refractive Index | 1.460 | — |
| Flash Point | >100°C | Flammable |
| Melting Point | <0°C | Does not solidify at low temperature |
| Surface Tension | 30 mN/m | Effectively reduces interfacial tension |
| Critical Micelle Concentration (CMC) | 9.8×10-4 mol/L | — |
| Solubility | Insoluble in water, soluble in organic solvents | Oil-soluble |
| Hydroxyl Value | 185~205 mgKOH/g | — |
| Acid Value | ≤1 mgKOH/g | — |
| Saponification Value | ≤1 mgKOH/g | — |
| Iodine Value | ≤1 | Saturated type |
| Amine Value | ≤1 mgKOH/g | — |
| Moisture Content | ≤0.3% | Low water content |